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Diagnostics
USB Keyboards
When editing the BIOS, enable DOS USB Keyboard Support. Enabling this option will allow you to use a USB
keyboard when booting a system with a boot disk.
Controller drivers
Many motherboard suppliers release driver combinations that include a number of hardware drivers. Confirm
that you have the latest driver installed. Some operating systems also provide drivers, so make sure you have
the latest available software patch as well.
scenario: No device ever works
Possible causes:
Operating system compatibility, controller/hub compatibility, configurations for USB control
-
lers, controller drivers.
If a system is experiencing constant controller failure, make sure the OS in use supports USB; verify that the
devices are supported by the controller; and check the controller’s settings and drivers. The Ultra cameras
use a generic controller. Integrated controllers will likely require you to enter the BIOS to make changes,
while add-on cards will require traditional troubleshooting according to the manufacturer’s directions.
You can identify integrated USB controllers by the location of the ports—if they are adjacent to the PS/2 ports,
the USB service is likely provided by an integrated controller. If the USB ports are located anywhere else on
the back of the computer, you’re probably dealing with a USB add-on card. Front-mounted USB ports can be
either type. You may have to open the PC case and visually inspect the USB ports to see whether they con-
nect directly to the motherboard or to an add-on card.
scenario: all devices occasionally stop working at the same time
Possible causes:
Power management, configurations for USB controllers, controller drivers, bandwidth
If the system experiences sporadic controller failure, the primary suspect on the PC/OS side is power manage-
ment, although it could be either an intermittent conflict or a problem with the USB controller. Try to isolate a
particular event common to all the failures, just as you would with any other sporadic hardware conflict. This
could lead you back to a power issue if you have bus-powered scanners or hard drives that might be drawing
more power than the PC can provide. If the system requires more power, try replacing the PC’s power supply
with one that provides more watts.
Bandwidth can also be an issue if several active devices are transferring large amounts of data. Potential
peripheral bandwidth hogs include printers, scanners, hard drives, and CD, DVD, or CDR/W drives.
Eliminating bandwidth problems might mean replacing a demanding USB device with an integrated replace-
ment or dividing the USB devices between different USB root hubs. See below for more on bandwidth issues.
Содержание UHR Ultra
Страница 1: ...Service Manual Ultra UHR Ultra and V3400 WHEEL ALIGNER May 2014 ...
Страница 13: ...11 AC DC POWER DISTRIBUTION ...
Страница 14: ...12 AC DC POWER DISTRIBUTION ...
Страница 16: ...14 Theory of Operation Figure 2 Top Field of View Figure1 Side Field of View ...
Страница 19: ...17 Theory of Operation Configuration using single pole wheel clamp ...
Страница 46: ...44 NOTES ...
Страница 67: ...65 Diagnostics ...
Страница 68: ...66 NOTES ...
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Страница 84: ...05 07 2014 2014 Impreso en U S A 309 Exchange Avenue Conway AR 72032 TEEWA546P4 Rev C ...